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Publicação
Channel Selection Algorithms for Cognitive Radio Systems
| Nome: | Descrição: | Tamanho: | Formato: | |
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| 1.78 MB | Adobe PDF |
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Resumo(s)
The Spectrum of Radio Frequency plays a key/central role in supporting the operation
of the whole range of mobile wireless devices. Such centrality derives from the fact it is
necessary when operating different technologies, such as TV, cellular networks, and satellite
transmissions, among others. Hence, the urgent need to design a better management of
these technologies as a means of minimizing the amount spectrum that is used.
This study was developed in two different stages. During a preliminary stage we came
up with a modelling method of the service time duration in cognitive radio networks, which
fosters a better management of the spectrum through its opportunistic use. In a second
stage, we propose four algorithms to manage these cognitive radio networks, using the
modelling method that was defined in the first stage, as a basis.
After implementing all the simulations, it was possible to verify the feasibility of this
modelling methodology and also to confirm the expected results. It should also be pointed
out that the four suggested algorithms were tested by carrying out simulations, being
effective solutions for difference operational scenarios.
Descrição
Palavras-chave
Cognitive Radio Radio frequency Spectrum Modeling Performance Analysis